html,
body {
  height: 100%;
}
body,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
hr,
button,
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  margin: 0;
  padding: 0;
}
img {
  border: 0;
}
a {
  text-decoration: none;
  background-color: transparent;
  color: #000;
}
a:hover,
a:active,
a:visited,
a:link,
a:focus {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-tap-highlight-color: transparent;
  outline: none;
  background: none;
  text-decoration: none;
}

ul,
li {
  margin: 0;
  padding: 0;
  list-style: none outside none;
}

.flex {
  display: flex;
  align-items: center;
}
.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
